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re: Better to have water dripping or turn off main and drain.

Posted on 12/19/22 at 12:19 pm to
Posted by dewster
Chicago
Member since Aug 2006
25950 posts
Posted on 12/19/22 at 12:19 pm to
Why do I need to do this in Louisiana for 19 degrees?

It wasn’t a problem in Chicago when it was -22 degrees and the house we lived in there was much more sloppily built than the one we live in down here.
Posted by Oates Mustache
Member since Oct 2011
24352 posts
Posted on 12/19/22 at 12:22 pm to
quote:

but then my dad would also blow through the pipes to get the rest of it. Never had a problem


Again, that's the key to this and it does work if you take this step.
Posted by StupidBinder
Jawja
Member since Oct 2017
6392 posts
Posted on 12/19/22 at 12:23 pm to
quote:

People who don't do anything are going to have a bad Christmas


Sounds like this should be the consensus….drip vs shut off at main seems debatable but either is better than doing nothing right?
Posted by p0845330
Member since Aug 2013
5730 posts
Posted on 12/19/22 at 12:32 pm to
During that big freeze a couple of years ago I had to be out of state for work. I left everything dripping vigorously, more than a really slow drip.

When I returned, it had worked. The water was still dripping, but the drains had frozen. Everything overflowed, and there were sheets of ice all over the floors. It was a small disaster. The power/heat went out.

I’ll never drip again when it is supposed to freeze unless I’m home.
Posted by weadjust
Member since Aug 2012
15481 posts
Posted on 12/19/22 at 12:40 pm to
quote:

Why do I need to do this in Louisiana for 19 degrees? It wasn’t a problem in Chicago when it was -22 degrees and the house we lived in there was much more sloppily built than the one we live in down here.


They don't put water heaters and pipes in unheated attics and garages in Chicago
Posted by SuperSaint
Sorting Out OT BS Since '2007'
Member since Sep 2007
144595 posts
Posted on 12/19/22 at 12:41 pm to
quote:

worst case scenario not being home. eta: i'm not a plumber so i don't know for certain.
im not a plumber either but I lay pipe when you're not home
Posted by TBoy
Kalamazoo
Member since Dec 2007
26080 posts
Posted on 12/19/22 at 12:55 pm to
Another issue is if you have a pool or a sprinkler system with a back flow preventer. Since you won't be running water to either during a freeze, turn off the backflow presenter and open the check valves to bleed off the water in the BFP and let air into the line. Leave the valves open so if any of the water underground freezes it will be able to expand without breaking the pipes.
Posted by cheobode
Member since Dec 2017
1416 posts
Posted on 12/19/22 at 12:56 pm to
I drip my faucets during a freeze. My dad always turned the main off if temps dropped below 20 and we never had a burst pipe.
Posted by GREENHEAD22
Member since Nov 2009
20048 posts
Posted on 12/19/22 at 5:19 pm to
Seems to be split but I went with dripping them, will probably set it at an aggressive drip/stream.

Will open all the cabinets and have the heater set to something decent.

Should you drip tye outside faucets? I have them wrapped.
Posted by Methuselah
On da Riva
Member since Jan 2005
23350 posts
Posted on 12/19/22 at 5:45 pm to
I drip, but I'm home, not away. Also, due to medical issues I'm up several times during the night so I'm flushing toilets, running water in the lavatory to wash my hands, rinse my mouth, etc.

One thing I also do which is kind of silly, but I think effective depending on how long it stays below freezing is run the washing machine not long before I go to bed (then start up the drier when I'm going to sleep) and set the dishwasher to start a couple of hours later. Together with the drip and me waking up that has water flowing enough.
Posted by G2160
houston
Member since May 2013
1875 posts
Posted on 12/19/22 at 5:46 pm to
I always thought one of the main purposes of dripping was to constantly be introducing water at roughly ground temp into the system.
Posted by YipSkiddlyDooo
Member since Apr 2013
3738 posts
Posted on 12/19/22 at 9:02 pm to
I never understood this when I lived in DFW. It gets cold enough every year that I was told to drip faucets at night, many times. I grew up in the northwest where it got significantly colder and we never once opened up faucets at night. You can’t convince me that it costs significantly more money to put whatever PVC we used that magically wouldn’t freeze when it got below 30 degrees. So why would a home (at least in north Texas) not use the same building code so they can stop worrying about dripping faucets and freezing pipes? And the hundreds of millions $ in damages that they cause every few years?
Posted by fr33manator
Baton Rouge
Member since Oct 2010
130233 posts
Posted on 12/19/22 at 9:09 pm to
Some plumbers are about to make bank
Posted by Beardlington
Member since Dec 2022
859 posts
Posted on 12/19/22 at 9:59 pm to
quote:

DFW. It gets cold enough every year that I was told to drip faucets at night, many times. I grew up in the northwest where it got significantly colder and we never once opened up faucets at night.


Yes but don't you think building codes, especially insulation standards, are different in DFW than they are in colder climates?
Posted by BuckyCheese
Member since Jan 2015
57778 posts
Posted on 12/19/22 at 10:07 pm to
quote:

Flushing involves blowing out the excess water. You can't just leave it sitting in the pipes. Lots of water sits in those pipes even after you turn all the faucets off.




Yes.

I'm laughing at all the southern experts on frozen pipes.

And what is this "drip" shite? Leaving it flowing about a pencil width and it won't freeze unless it gets wayyyy below freezing on an exposed pipe.

You need one of these, and an air compressor, to blow out the lines;
This post was edited on 12/19/22 at 10:30 pm
Posted by BuckyCheese
Member since Jan 2015
57778 posts
Posted on 12/19/22 at 10:14 pm to
quote:

When we would leave our cottage in northern Wisconsin in the winter, we'd open the faucets, turn off the main, drain the natural pressure, but then my dad would also blow through the pipes to get the rest of it. Never had a problem.




Bet he poured this in the water traps and toilets (and flushed them) as well.

Once saw a toilet shattered from being frozen in a cabin.

This post was edited on 12/19/22 at 10:16 pm
Posted by GREENHEAD22
Member since Nov 2009
20048 posts
Posted on 12/19/22 at 10:15 pm to
Pencil width noted.

Leave the outside faucets running as well?

Seeing it will be anywhere from 15-18 at the coldest.
This post was edited on 12/19/22 at 10:17 pm
Posted by kciDAtaE
Member since Apr 2017
16745 posts
Posted on 12/19/22 at 10:15 pm to
quote:

But if the faucets are open, there is a path for the ice to flow


This is correct. The ice can expand longitudinally. Pressure will not build up to crack pipes
Posted by Relham10
Ridge
Member since Jan 2013
18426 posts
Posted on 12/19/22 at 10:17 pm to
Turn off main and drain
Posted by BuckyCheese
Member since Jan 2015
57778 posts
Posted on 12/19/22 at 10:18 pm to
quote:

Leave the outside faucets running as well?



Those generally have their own shut off valve with a built in drain. Up north here anyway.

I shut those off and drain in the winter generally.
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